Discontinuous modelling of shear bands using adaptive meshfree methods

Timon Rabczuk, E. Samaniego

Research output: Contribution to journalArticle

118 Citations (Scopus)

Abstract

A simple methodology to model shear bands as strong displacement discontinuities in an adaptive meshfree method is presented. The shear band is represented by a displacement jump at discrete particle positions. The displacement jump in normal direction is suppressed with penalty method. Loss of material stability is used as transition criterion from continuum to discontinuum. The method is two- and three-dimensional. Examples of complicated shear banding including transition from brittle-to-ductile failure are studied and compared to experimental data and other examples from the literature.

Original languageEnglish
Pages (from-to)641-658
Number of pages18
JournalComputer Methods in Applied Mechanics and Engineering
Volume197
Issue number6-8
DOIs
Publication statusPublished - 2008 Jan 15
Externally publishedYes

Keywords

  • Loss of hyperbolicity
  • Meshfree methods
  • Shear bands
  • Traction-separation laws

ASJC Scopus subject areas

  • Computer Science Applications
  • Computational Mechanics

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